What does glucagon do in the body?

Glucagon plays a critical role in regulating blood sugar levels in the body, particularly when they are low. It is a hormone produced by the alpha cells in the pancreas, and its primary function is to initiate the process of gluconeogenesis and glycogenolysis.

When blood sugar levels drop, glucagon is released into the bloodstream, signaling the liver to convert stored glycogen back into glucose. This glucose is then released into the bloodstream, raising blood sugar levels to ensure that the body has the energy it needs to function properly. This process is essential for maintaining homeostasis, particularly between meals or during periods of fasting.

The other options do not accurately describe the primary function of glucagon. While promoting the storage of fat, reducing blood pressure, and increasing insulin production are important physiological processes, they are not directly associated with the action of glucagon. Instead, those functions are regulated by other hormones and mechanisms in the body.